Following their love call from Chris Brown, which started T-ara N4's activites in L.A., it has now been revealed that sub-unit has also received love calls from the team of producers named '1500 or NOTHIN', the group of producers who have produced numerous hits for artists like Beyonce, Rihanna, Snoop Dogg, Chris Brown, Wiz Khalifa and more. Aside from that, T-ara N4 has also received numerous love calls from other American artists, and that includes the hip-hop star Ray J.

Core Contents Media stated, "The team of producers known as 1500 or NOTHIN proposed to meet with T-ara N4 after hearing their music. They will meet on the 15th at 3:00 PM local time (LA) and visit their studio". In addition to that, T-ara N4 also graced the invitation from Sony Studios and went to their headquarters, their footage from their visit will be revealed on YouTube.

CCM also added, "During their stay in America, T-ara are meeting and receiving a variety of love calls from American music officials. When they arrive back, it will all be discussed through a press conference on May 20th".